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Bristol, United Kingdom

Derek A Roberts

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 190(Granted Patents)

Location History:

Almondsbury, GB (1980)
Bristol, GB (1979 - 1992)

Company Filing History:

11 out of 5,893

Rolls-Royce Corporation

Years Active: 1979-1992

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5107675 - Gas turbine engine (1992-04-28),

2. 4858815 - Friction welder mechanism (1989-08-22),

3. 4756153 - Load transfer structure (1988-07-12),

4. 4503667 - Turbine overspeed limiter for turbomachines (1985-03-12),

5. 4452567 - Rotor drive systems (1984-06-05),

6. 4425079 - Air sealing for turbomachines (1984-01-10),

7. 4395247 - Shaft coupling (1983-07-26),

8. 4375906 - System for supporting a rotor in a conditions of accidental dynamic (1983-03-08),

9. 4306755 - Gas turbine rotor support systems (1981-12-22),

10. 4224011 - Cooled rotor blade for a gas turbine engine (1980-09-23),

11. 4175803 - Bearing assembly between inner and outer shafts having two roller (1979-11-27),

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